Hello, today I completed the prototype plan for the solid machined titanium nib.
I completed the design and required manufacturing methods.
In the second research post, I leaned towards non-through hole design,
but after more research, I concluded that the through hole type is more suitable for manufacturing.
1. A method to align the angle of the feeder is needed, so I designed certain part of the feed and inside of the titanium to be square to solve the angle alignment.
2. For the firmly fixing the feed to the nib, the nib tightening alone will fix the feeder firmly by giving a step to the feeder design.
3. As before, I installed an O-ring on the outer diameter of the nib to prevent ink from leaking out between the nib and the grip frontal hole.
4. I designed new grip and feeder that fit the titanium nib. A dedicated feeder and grip section are required to fit the titanium nib, although they are compatible with the existing barrel cap design. Unfortunately it is impossible to install into the slim asymmetry due to insufficient thickness of the barrel.
Currently I purchased the titanium material. The material is titanium Grade 5 ELI alloy (= Grade 23) (Ti-6Al-4V)
(prototype testing will be done with Chinese / USA titanium, actual production with German titanium),
I plan to use more expensive German titanium Gr.5 ELI (extra low interstitual), not the Chinese industrial type titanium that makes up the majority of the market.
Titanium ELI material has less impurities than regular grade 5 titanium, so it has the following advantages:
Improved biocompatibility (implant possible, low toxicity), improved fatigue life, ductility, fracture toughness, yield strength, etc.
Since other productions are currently in progress, it will take some time for full-scale production research, but I'm conducting the necessary research in advance.
The research will continue and I will upload the research results periodically.
Thank you.
